1/9三年级数学简便运算三年级数学简便运算(2)153+178+122+547(3)(141+229)+(371+659+1048)(4)926—348—152⑸1584—627—373+416⑹1276—(276+339)⑺4628—(1628—794)(8)526+498(9)803+488(10)938—299(11)836—402(12)635+327+125+(363+240)(13)9999+999+99+9+6(14)32+34+36+38+40+42+44+46+48(15)(1347—258)—(347+742)(16)3560—(474—440)—526(17)12345+23451+34512+45123+51234(18)5+10+15+20+...+95(19)5+6+7+8+...+103+104(20)(2+4+6+...+100)—(1+3+5+...+99)四年级数学简便运(1)(78+61)+39(2)700—82—18(3)348+163+242+410+537(4)125x47—47x25(5)201x316(6)374—205+226—95(7)3000—999(8)997x7+21(9)87x470+870x53(10)(55+55+55+55x5)x125(11)125x(8+40)x25(12)99+49x99(13)264x97+4x264(14)454+999x999+545(15)9999x36+6666x3x32(16)124x38+65x124+76x110—76x7(17)62x4+44x5+5x18(18)3400—62x34—38x20—38x142/9+99(19)1992x19911991-1991x19901990(20(2+4+6+……+100)-(1+3+5+小数简便运算练习4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.242.35+1.713+0.287+7.651.57+0.245+7.436.02+3.6+1.980.134+2.66+0.8661.27+3.9+0.73+16.17.5+4.9—6.53.07—0.38—1.621.29+3.7+2.71+6.38—2.45—1.553.25+1.79—0.59+1.7523.4—0.8—13.4—7.20.32x4033.2+0.36+4.8+1.641.23+3.4—0.23+6.60.25x3612.7—(3.7+0.84)36.54—1.76—4.540.25x0.73x47.6x0.8+0.2x7.60.85x1990.25x8.5x41.28x8.6+0.72x8.612.5x0.96x0.810.4—9.6x0.350.8x(4.3x1.25)3.12+3.12x9928.6x101—28.6(4.23+6.17)x0.80.86x15.7—0.86x14.72.4x10214—7.32—2.682.64+8.67+7.36+11.332.31x1.2x0.5(2.5—0.25)x0.49.16x1.5—0.5x9.163.6—3.6x0.53/94.5一1.84.2一3.5930一0.6一563.4-2.5-0.44.9一1.43.9-(1.3x5)(7.7+1.54)-0.72.5x2.42.7-450.35x1.25x2x0.832.4x0.9+0.1x32.415-0.2570-2815-(0.15x0.4)4.25-2.5x9.9+0.17人教版六年级数学简算•计算题4/9x3=5-1/3=1/2-1/3=21/25-42=4/5x3/4=8.7x0.2=4x0.25=1/7x14=2/3-5/6=1.25x8=3/5-5/8=6/7x3/2=6x8.8=4/11-4=4/9x3/8=5/3-5=0-8/3=4/7-2/3=2/7x2=41/12x4=4-3/16=12-9/4=75/8-5=12x16/9=2/3x3=8-9/4=5/3-3/5=4/5x5/8=7/9x9/7=2.64+3.6=2.4x50=3500-70=2050-298=2+7-9=0.3-3%=286+198=314-202=526+301=223-99=1/2x3/5=1.89-100=0.82+0.08=73x1=0.63x10=4-10=17-1000=0.56+0.4=1.25x100=5.6+99=43x63/21=100-25=1-0.93=90-0.9=18.3x1/3=794-198=68x25=43.3-63/21=72x125=3001-1998=23/5x5/6=20/3x12=1/2-1/6=30.25x4/5=5/6-1/2=1/2x1/5=4.25x4/25x457.26—(5.26—1.5)106.25+3.85—2.125+3.87511.9—2456x215/11—4x2.754/913.375+5.75+2.25+6.625(15.1—9036)-18163.8x5.25+14.5172.1x4.3+5.7x2.119.102x45-3282.8x3.1+16/823-(50-12.5)-2.524x2/5x1/325.6-110x47+6393.5x2.7-52.2/185/928—1/7x1/53.375x0.97+0.97x6.6256.54+2.4+3.46+0.695.6x1.8+95.6x8.235.6—420/12x4344/3.6-5.4x0.2516/2+30/2+90/65000-105x340.15/0.25+0.75x1.241x(1/2+1/3+1/4)x0.2442x(25+4)x43x63/21—840.81/0.25+5.96x5403-13x2746.1.5x4.2—0.75一0.253.27x4+3.27x5.76/9(1.2+1.8)x4.51025—768-320.25x80—0.45-0.950.1025—768-3281.2—11-7—x3=6696-62—6.5x10.6=2/7x3/9-2/7=6756—193—207=97x360+3x360=4/9x3=5-1/3=1/2-1/3=2/7x3/9-2/7=21/25-42=4/5x3/4=8.7x0.2=4x0.25=1/7x14=2/3-5/6=1.25x8=3/5-5/8=6/7x3/2=6x8.8=4/11-4=4/9x3/8=5/3-5=0-8/3=4/7—2/3=2/7x2=41/12x4=4-3/16=12-9/4=75/8-5=12x16/9=2/3x3=8-9/4=5/3-3/5=4/5x5/8=7/9x9/7=2.64+3.6=2.4x50=3500-70=2050—298=2+7-9=0.3-3%=81.2—11-7—x3=6696-62—6.5x10.6=1.89-100=0.82+0.08=73x1=0.63x10=4-10=17-1000=0.56+0.4=1.25x100=5.6+99=100-25=1-0.93=90-0.9=794—198=68x25=6756—193—207=72x125=97x360+3x360=一、简算。7/9★1.1035-998★2.5076+99★3.3008+449★4.428x25x4★★5.328-189-28★★6.43.2-(3.2-1.28)..77-257★★先七-影**g.3-+1.83+2-444★★9.2-X3.6+2-+2-;^5.4★★10J；^'(4-0.1253To★★11999+99+2A..11,1.**12：.£-+--+X'24.2.36345★★15.3--3-+6.fe5-6-&yy49**15：^----十12；'.'33+:-3-；-十7.■:6：2★★16.4.75^4.75+4---+4-：^-4.2544★★17.25x2x1.25x4x5x8★★18.84x0.25+16-4★★144}□4642T—598/9：2IQ★★★1914.43+2亓十』云+15.575-347★2C3--1?D-C17-1-)★★★21.5^4f十:沁18545丄丄丄,,757澄★★★22；39.37^<14+60-昭试14+17右x、改错，下面各题错在哪里，请改正。777
